"""
Case Type   : 多节点写入
Case Name   : 备机执行定义用户的DDL语句
Create At   : 2023/1/5
Owner       : @li-xin12345
Description :
    1.修改enable_remote_execute参数值为on
    2.备机执行定义用户的DDL语句
    3.备机查看日志打印
    4.恢复参数
Expect      :
    1.修改成功
    2.执行成功
    3.日志记录建立连接、转发给主机、接受执行结果等libpqsw信息
    4.恢复参数成功
History     :
    Modified by @li-xin12345 2023/1/13:修改用户密码时更改引用的新密码，避免新旧密码一样
    Modified by @li-xin12345 2023/3/15:研发代码变更，libpqsw日志打印增加线程号，优化断言以适配新代码
    Modified by @kyeleze 2023/7/5:研发代码变更，日志打印信息更改，优化断言以适配新代码
"""
import os
import time
import unittest
from yat.test import Node
from yat.test import macro
from testcase.utils.Logger import Logger
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant

PrimarySh = CommonSH('PrimaryDbUser')


@unittest.skipIf(1 == PrimarySh.get_node_num(),
                 'Single node, and subsequent codes are not executed.')
class MultiNodeWrite(unittest.TestCase):
    def setUp(self):
        self.logger = Logger()
        self.logger.info(f"-----{os.path.basename(__file__)} start-----")
        self.standby_node = Node('Standby1DbUser')
        self.standby_sh = CommonSH('Standby1DbUser')
        self.constant = Constant()
        self.common = Common('Standby1DbUser')
        self.user_name = 'u_multi_node_write_case0009'
        self.new_log_path = os.path.join(macro.PG_LOG_PATH,
                                         'pg_log_multi_node_write_case0009')
        self.enable_remote_execute = 'enable_remote_execute'
        self.log_statement = 'log_statement'
        self.log_directory = 'log_directory'
        self.remote_execute_default = self.common.show_param(
            self.enable_remote_execute)
        self.log_statement_default = self.common.show_param(self.log_statement)
        self.log_dir_default = self.common.show_param(self.log_directory)
        shell_cmd = f"rm -rf {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.assertEquals('', shell_msg, '删除目录失败')

    def test_multi_node_write(self):
        step1 = "-----step1:修改enable_remote_execute参数值为on;expect:修改成功-----"
        self.logger.info(step1)
        result = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}=on')
        self.assertTrue(result, '执行失败' + step1)
        restart_res = self.standby_sh.restart_db_cluster()
        self.assertTrue(restart_res, '执行失败' + step1)
        show_remote_execute = self.common.show_param(self.enable_remote_execute)
        self.assertEquals(show_remote_execute, 'on', '执行失败' + step1)
        result = self.standby_sh.execute_gsguc('reload',
                                               self.constant.GSGUC_SUCCESS_MSG,
                                               f'{self.log_statement}=all')
        self.assertTrue(result, '执行失败' + step1)
        result = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.new_log_path}\'', single=True)
        self.assertTrue(result, '执行失败' + step1)
        show_log_statement = self.common.show_param(self.log_statement)
        self.assertEquals(show_log_statement, 'all', '执行失败' + step1)
        show_log_directory = self.common.show_param(self.log_directory)
        self.assertEquals(show_log_directory, self.new_log_path, '执行失败' + step1)

        step2 = "-----step2:备机执行定义用户的DDL语句;expect:执行成功-----"
        self.logger.info(step2)
        sql_cmd = f'''drop user if exists {self.user_name}; 
            create user {self.user_name} password '{macro.COMMON_PASSWD}';
            alter user {self.user_name} identified 
            by '{macro.PASSWD_INITIAL}' replace '{macro.COMMON_PASSWD}';
            alter user {self.user_name} createrole;
            drop user {self.user_name} cascade;'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG,
                      sql_msg, '执行失败' + step2)
        self.assertEquals(2, sql_msg.count(
            self.constant.ALTER_ROLE_SUCCESS_MSG), '执行失败' + step2)
        self.assertEquals(2, sql_msg.count(self.constant.DROP_ROLE_SUCCESS_MSG),
                          '执行失败' + step2)
        time.sleep(3)

        step3 = "-----step3:备机查看日志打印;expect:日志记录建立连接、" \
                "转发给主机、接受执行结果等libpqsw信息-----"
        self.logger.info(step3)
        shell_cmd = f"ls -t {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        logfile = os.path.join(self.new_log_path, shell_msg.split()[-1])
        self.logger.info(logfile)
        shell_cmd = f"cat {logfile}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.logger.info(shell_msg)
        self.assertIn('we find new transfer request',
                      shell_msg, '执行失败:' + step3)
        self.assertIn('Connecting to remote server',
                      shell_msg, '执行失败:' + step3)
        self.assertIn(f'LOG:  libpqsw', shell_msg, '执行失败:' + step3)

    def tearDown(self):
        step4 = "-----step4:恢复参数;expect:恢复参数成功-----"
        self.logger.info(step4)
        result1 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}={self.remote_execute_default}')
        restart_res = self.standby_sh.restart_db_cluster()
        show_remote_execute = self.common.show_param(self.enable_remote_execute)
        result2 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_statement}={self.log_statement_default}')
        result3 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.log_dir_default}\'', single=True)
        show_log_statement = self.common.show_param(self.log_statement)
        show_log_directory = self.common.show_param(self.log_directory)
        self.logger.info("-----断言teardown-----")
        self.assertTrue(result1, '执行失败' + step4)
        self.assertTrue(restart_res, '执行失败' + step4)
        self.assertEquals(show_remote_execute, self.remote_execute_default,
                          '执行失败' + step4)
        self.assertTrue(result2, '执行失败' + step4)
        self.assertTrue(result3, '执行失败' + step4)
        self.assertEquals(show_log_statement, self.log_statement_default,
                          '执行失败' + step4)
        self.assertEquals(show_log_directory, self.log_dir_default,
                          '执行失败' + step4)
        self.logger.info(f"-----{os.path.basename(__file__)} end-----")
